Data Engineering

Learn how to prepare for data engineering interviews and understand the set of skills expected from a data engineer.

Medium level SQL questions utilize more advanced concepts like sub-queries, window functions, and solving case study problems.

Data structures in Python attempt to be more intuitive and flexible than traditional data structures in other programming languages.

Learn the dimensional modeling framework for designing data warehouses.

Let's tackle advanced SQL interview questions that focus on multi-joins and layers of data interpretation. These questions may come up in take-home challenges and senior level interviews.

Let's try some hard Python questions that you would see in tougher data science interviews and many machine learning interviews.

Data processing and analysis is the first step that we need to consider once we've clarified details and started down the path of building the model.

Learn a framework to ace database system design interview questions. Practice defining the problem clearly, justifying your design decisions, and considering edge cases.